Raritan Computer DKSXII-V2.3.0-0D-E - Manual (Page 154)

Chapter 8: Device Management
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Configure the Telnet TCP Port as "7770". Once this is done,
connection to the target can be done using "telnet <KSX II device
IP address> 7770".
 Direct Port Access via SSH Port:
Configure the SSH TCP port as "7888". Once this is done,
connection to the target can be done by using “ssh –l <login>
<KSX II device IP address> -
p 7888”.
3. Click OK to save this information.